semicentennial
UK /ˌsɛmɪsɛnˈtɛnɪəl/ · US /ˌsɛˌmaɪsnˈtɛniəl/ adjective, noun
Forms semicentennials
- adjective Of or related to a 50th anniversary, occurring every 50 years.
- noun A 50th anniversary. “The city celebrated its semicentennial last year.”
Synonyms
semicentenary jubilee golden anniversary golden jubilee (50th anniversary of a coronation) golden wedding (50th anniversary of a marriage)
Etymology
From semi- (“half”) + centennial (“100 year, 100th anniversary”), q.v.
Webster’s 1913
- adjective Of or pertaining to half of a century, or a period of fifty years; as, a semicentennial commemoration.
- noun A fiftieth anniversary.
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “semicentennial”, CC BY-SA 4.0. Details